Free top 10 of 85
| # | Company | Sector | Industry | Staff | 1-yr growth |
|---|---|---|---|---|---|
| 1 | LINK Financial | Finance | Credit Cards & Transaction Processing | 500-999 | 200%+ (estimated) |
| 2 | Health Assured | Hospitals & Physicians Clinics | Medical Specialists | 250-499 | 200%+ (estimated) |
| 3 | Sara Global Sara Global | Manufacturing | Plastic, Packaging & Containers | 250-499 | 200%+ (estimated) |
| 4 | Silverlight Research | Business Services | Management Consulting | 100-249 | 200%+ (estimated) |
| 5 | Resident Advisor | Hospitality | Restaurants | 100-249 | 200%+ (estimated) |
| 6 | Supporting Education Group | Business Services | Management Consulting | 100-249 | 200%+ (estimated) |
| 7 | Brazilian Nickel | Minerals & Mining | Minerals & Mining | 100-249 | 200%+ (estimated) |
| 8 | Sterling Outsourcing Sp zoo | Business Services | Accounting Services | 100-249 | 200%+ (estimated) |
| 9 | Hat Trick International | Media & Internet | Broadcasting | 50-99 | 200%+ (estimated) |
| 10 | Inside Ideas | Business Services | Advertising & Marketing | 50-99 | 200%+ (estimated) |
Edition October 2026. Source: licensed B2B firmographic and technographic data. Company-level only.
What the data shows
- Median 1-year headcount growth across the 85 employers in London: +100%.
- 73 of 85 (86%) at least doubled headcount in a year (figures over 200% are estimates).
- Biggest industries: Advertising & Marketing (6), Training (5), Broadcasting (4).
- Size mix: 36 under 50 staff, 34 with 50–199, 15 with 200+ (median 79 employees).
Get all 85: $7
CSV + Excel + PDF with website, size, growth and revenue bands and a careers search link for every company.
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Notes and limits
- Ranked by 1-year headcount growth from licensed B2B firmographic and technographic data. Employers with 20–1,000 staff that grew at least +76.7% in a year (the lowest on this list).
- Growth is the exact 1-year headcount change, rounded. Anything of 200% or more is shown only as "200%+ (estimated)" (small teams make such figures unreliable), and inside that group companies are listed largest first.
- Companies are placed by head-office location; metro areas include their suburbs. Schools, universities, government bodies, churches and membership organisations are left out, as are likely branches of larger groups.
- A fast-growing company is not guaranteed to be hiring for your role today; use the careers link to check.
- Company-level data only: no personal contacts.
Related lists
- Fastest-growing employers in Amsterdam (2026) (95 companies)
- Fastest-growing employers in Austin (2026) (91 companies)
- Fastest-growing employers in Boston (2026) (83 companies)
- Fastest-growing employers in Dublin (2026) (89 companies)
- Fastest-growing employers in Manchester (2026) (85 companies)
- Fastest-growing employers in Melbourne (2026) (94 companies)
- Fastest-growing employers in New York (2026) (82 companies)
- Fastest-growing employers in the San Francisco Bay Area (2026) (92 companies)
FAQ
- How is "fastest-growing" measured?
- By 1-year headcount growth from licensed B2B firmographic and technographic data, for employers with 20–1,000 staff. Growth below 200% is shown as the exact figure; 200% or more is shown as "200%+ (estimated)" and those companies are listed largest first.
- Are these companies hiring?
- Headcount growth is a strong hiring signal, but it is not a job opening. Each row in the full list has a careers-page search link.
- What do I get for $7?
- All 85 companies with website, sector, size band, growth, revenue band and careers link, as CSV, Excel and PDF.